Plasma Membrane

The plasma membrane is selectively permeable, which means...

• All materials can enter and leave the cell
• Certain things can enter while others cannot
• The cell manually sorts through all materials
• Only certain cells can interact with the cell.

Most of the cell membrane is made of...

• Lipids
• Carbs
• Proteins
• Nucleic acids

Which of the following is NOT part of the plasma membrane?

• Lipids
• Carbs
• Proteins
• Nucleic Acids

Lipid tails are...

• Nonpolar & repel water
• Polar & attract water

Fatty acid tails will ......... in order to stay away from watery environment found outside and inside of the cell.

• form the inside of the plasma membrane
• form the outside of the plasma membrane

When looking at the plasma membrane, where are the phospholipid heads located?

• Floating between bilayer levels
• Outer part of the bilayer
• Inner part of the bilayer
• Located at different parts throughout the bilayer

Which of the following is responsible for getting complex molecules across the cell membrane?

• Lipids
• Carbs
• Proteins
• Nucleic Acids

Another name for plasma membrane is....

• cell wall
• Nuclear membrane
• Cell membrane
• plasma membrane

The function of the plasma membrane is....

• regulate what enters and leaves the cell.
• fight bacteria and viruses that enter the cell.
• make sure each cell reproduces 
• make sure each cell can move

What 3 substances move among phospholipids?

• Cholesterol, proteins, carbohydrates 
• amino acids, carbohydrates, cells
• lipids, proteins, carbohydrates
• cells, cholesterol, amino acids